Comparative Analysis of Bending and Rolling Shear Performance of Poplar and Hybrid Maple-Poplar Cross-Laminated Timber (CLT)
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60460709%3A41320%2F25%3A103152" target="_blank" >RIV/60460709:41320/25:103152 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.3390/jcs9030134" target="_blank" >https://doi.org/10.3390/jcs9030134</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3390/jcs9030134" target="_blank" >10.3390/jcs9030134</a>
Alternative languages
Result language
angličtina
Original language name
Comparative Analysis of Bending and Rolling Shear Performance of Poplar and Hybrid Maple-Poplar Cross-Laminated Timber (CLT)
Original language description
Cross-laminated timber (CLT) is gaining popularity as a sustainable alternative to traditional building materials. However, the decline of natural vegetation and the growth of plantation hardwoods has led the researchers to consider alternatives. This study presents a comparative analysis of bending and rolling shear performance of homogenous poplar (Populus nigra L.) CLT and hybrid CLT, with maple (Acer platanoides L.), in the outer layer and poplar in the core, compared to spruce (Picea abies (L.), H. Karst.) CLT. The CLT panels were prepared using one-component polyurethane (1C-PUR) and melamine adhesive (ME). Poplar CLT exhibited equal or better properties than spruce CLT. The outer maple layer in the hybrid CLT enhanced the global bending modulus (Emg) and bending strength (fm) by 74% and 37%, respectively, due to its higher modulus of elasticity better shear resistance by reducing the cross-layer stress concentrations and rolling shear failure. Additionally, both the adhesive types and wood species significantly influenced the fm, Emg, and rolling shear strength (fr) independently, while their interaction effect was found to be non-significant. The experimental bending stiffness was higher than the theoretical values. The shear analogy method provided the most accurate results for bending and shear strengths, while bending stiffness was best predicted by the modified gamma method, with minor variations. The finite-element models (FEMs) also produced results with a deviation of only 10%.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20505 - Composites (including laminates, reinforced plastics, cermets, combined natural and synthetic fibre fabrics; filled composites)
Result continuities
Project
<a href="/en/project/EF16_019%2F0000803" target="_blank" >EF16_019/0000803: Advanced research supporting the forestry and wood-processing sector´s adaptation to global change and the 4th industrial revolution</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of Composites Science
ISSN
2504-477X
e-ISSN
2504-477X
Volume of the periodical
9
Issue of the periodical within the volume
MAR 13 2025
Country of publishing house
CH - SWITZERLAND
Number of pages
19
Pages from-to
1-19
UT code for WoS article
001453151800001
EID of the result in the Scopus database
2-s2.0-105000865559